Real Dictionary

lap
countable noun: If you have something on your lap when you are sitting down, it is on top of your legs and near to your body.

lap in American English 1
the loose lower part of a garment, which may be doubled or folded over; skirt of a coat or gown
to fold (over or on)
noun: the front part of the human body from the waist to the knees when in a sitting position

lap in American English 2
to drink (a liquid) by dipping it up with the tongue in the manner of a dog
intransitive verb: to fold or wind around something
noun: the act of lapping
transitive verb: to fold over or around something; wrap or wind around something

lap in American English 3
intransitive verb: to wash or move in small waves with a light, slapping or splashing sound
transitive verb: to wash against or beat upon (something) with a light, slapping or splashing sound

lap in American English 4
verb

lap in British English 1
noun: one circuit of a racecourse or track
verb: to wrap or fold (around or over)

lap in British English 3
noun: the area formed by the upper surface of the thighs of a seated person